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CVE-2021-4083
Date: January 18, 2022
A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.
Severity Score
Related Resources (12)
Severity Score
CVSS v3.1
Base Score: |
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Attack Vector (AV): | LOCAL |
Attack Complexity (AC): | HIGH |
Privileges Required (PR): | LOW |
User Interaction (UI): | NONE |
Scope (S): | UNCHANGED |
Confidentiality (C): | HIGH |
Integrity (I): | HIGH |
Availability (A): | HIGH |
CVSS v2
Base Score: |
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Access Vector (AV): | LOCAL |
Access Complexity (AC): | MEDIUM |
Authentication (AU): | NONE |
Confidentiality (C): | COMPLETE |
Integrity (I): | COMPLETE |
Availability (A): | COMPLETE |
Additional information: |